fasttext: 0.2.0 -> 0.9.1

Changes:

- Refactoring of internal classes.
- Better unicode handling.

https://github.com/facebookresearch/fastText/releases/tag/v0.9.1

pkgs/applications/science/machine-learning/fasttext/default.nix

@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "fasttext";
-  version = "0.2.0";
+  version = "0.9.1";
 
   src = fetchFromGitHub {
     owner = "facebookresearch";
     repo = "fastText";
-    rev = version;
-    sha256 = "1fcrz648r2s80bf7vc0l371xillz5jk3ldaiv9jb7wnsyri831b4";
+    rev = "v${version}";
+    sha256 = "1cbzz98qn8aypp4r5kwwwc9wiq5bwzv51kcsb15xjfs9lz8h3rii";
   };
 
   nativeBuildInputs = [ cmake ];